John s



@uitrit tang gstrnt ffice.

JOHN S. MERRILL, OF NEWTOWN, MARYLAND.

' I Letters Patent No. 72,314, dated December 17, 1867.

IMPROVEMENT IN WINDOW-SASH SUPBORTERS.

'ro ALL WHOM 1T MAY eoNoERN:

Be it known that I, JOHNS. MERRILL, of Newtown, Worcester county, Stateof Maryland, have invented new and useful Improvements in Window-Sashgand I do hereby declare the following to be an exact descriptionthereof,` reference being had to `the accompanying drawings, and totheletters of reference marked thereon, making a part ofthisspecification, in whichr Figure 1 represents the front view ofwindow-frame, sash, and rollers.

Figure 2, a side view of the sash, metallic box, and loose roller.

The nature of my invention consists in the combination and constructionof the inclined metallic box or plate, with a. loose metallic roller ormetallic ball in the one side ofthe sash, and friction-rollers on theopposite side of the sash. v I l A represents the window-frame, B thewindow-sash, in the side of which is inserted an inclined metallic boxor plate, C, to prevent the sash from being worn by the loose roller, D,the lower end'of the box` C being wide below and tapering tothe top, themetallic loose ball or roller D resting in the lower end of the metallicbox C, so that the sash is easily raised; and whenever the sxish is tobe raised to any particular height required, the

sash is pressed toward the right, and the loose roller D falls from theAnarrow end to the bottom of the metallic box C. By raising the sashslightly, and pressing the sash to the left, the loose roller D-ispressed against the window-frame A tightly, and holds the sash to theposition required, by becoming wedged into the narrow part of theinclined metallic box C. Two friction' rollers, E E, are set into, andoperated, and used in the opposite side of the sash, to allow the sashto he freely moved when being raised. y

I do not claim a self-acting roller or friction-rollers, as heretoforeused with window-sash, but What I claim as my invention, and desire tosecure by LettersPatent, is

The use of the self-acting metallic roller D,'in combination with theinclined metallic box C,`in the one sidel of the sash, and twofriction-rollers, EE, attached to the opposite side vof the sash, whenarranged, combined, and operating with the sash, as hereindescribed andfor the purposes set forth.

'JOHN S. MERRILL.

Y Witnesses:

J. FRANKLIN REIGART,

J. H. MERRILL.

